Started on node.js+socket.io+mongoDB on the backend for more responsivnes

server/node_modules/monk/lib/util.js

@@ -0,0 +1,44 @@
+
+/**
+ * Parses all the possible ways of expressing fields.
+ *
+ * @param {String|Object|Array} fields
+ * @return {Object} fields in object format
+ * @api public
+ */
+
+exports.fields = function (obj) {
+  if (!Array.isArray(obj) && 'object' == typeof obj) {
+    return obj;
+  }
+
+  var fields = {};
+  obj = 'string' == typeof obj ? obj.split(' ') : (obj || []);
+
+  for (var i = 0, l = obj.length; i < l; i++) {
+    if ('-' == obj[i][0]) {
+      fields[obj[i].substr(1)] = 0;
+    } else {
+      fields[obj[i]] = 1;
+    }
+  }
+
+  return fields;
+};
+
+/**
+ * Parses an object format.
+ *
+ * @param {String|Array|Object} fields or options
+ * @return {Object} options
+ * @api public
+ */
+
+exports.options = function (opts) {
+  if ('string' == typeof opts || Array.isArray(opts)) {
+    return { fields: exports.fields(opts) };
+  }
+  opts = opts || {};
+  opts.fields = exports.fields(opts.fields);
+  return opts;
+};